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Sunbelt Spectra comparison with Standard ASTM G173: the Chilean case

Marzo, Aitor and Polo, Jesus and Wilbert, Stefan and Gueymard, Christian A. and Jessen, Wilko and Ferrada, P and Alonslo-Montesinos, J and Ballestrin, Jesus (2018) Sunbelt Spectra comparison with Standard ASTM G173: the Chilean case. In: AIP Conference Proceedings, 2033 (190010). SolarPACES Conference, 26.-29. Sept. 2017, Santiago de Chile. DOI: 10.1063/1.5067195

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Two spectra of solar direct normal irradiance (including circumsolar) are estimated based on spatio-temporal averages of the relevant atmospheric parameters extracted from two different databases: MODIS satellite sensor retriev-als and AERONET sun photometer network. The satellite database is used to calculate an average spectrum for the area of the Atacama Desert. The AERONET database is used for two purposes: (i) to apply bias-removal linear methods to correct the MODIS parameters over Atacama Desert, and (ii) to calculate an average local spectrum for the Paranal station. The SMARTS radiative transfer model is used to obtain the three representative spectra developed in this study. Both the Atacama Desert and Paranal spectra are compared against each other and also to the world reference, ASTM G173. In one of the cases, significant differences are found for short wavelengths. In order to quantify the relative im-portance of these spectral differences, the propagation of errors due to the use of each spectrum is evaluated for CSP applications over the Atacama Desert, considering twelve different scenarios involving the reflectance, transmittance or ab-sorptance of various materials.

Item URL in elib:https://elib.dlr.de/115544/
Document Type:Conference or Workshop Item (Speech)
Title:Sunbelt Spectra comparison with Standard ASTM G173: the Chilean case
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Marzo, AitorUniversidad AntofagastaUNSPECIFIED
Polo, JesusciematUNSPECIFIED
Wilbert, StefanStefan.Wilbert (at) dlr.dehttps://orcid.org/0000-0003-3573-3004
Gueymard, Christian A.solar consulting services, new smyrna beach, fl, usaUNSPECIFIED
Jessen, WilkoWilko.Jessen (at) dlr.deUNSPECIFIED
Ballestrin, Jesusciemat-psaUNSPECIFIED
Date:8 November 2018
Journal or Publication Title:AIP Conference Proceedings
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1063/1.5067195
Keywords:solar spectra, aerosol optical depth, SMARTS, standardization
Event Title:SolarPACES Conference
Event Location:Santiago de Chile
Event Type:international Conference
Event Dates:26.-29. Sept. 2017
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Thermal Technology
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Impact of Desert Environment
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Qualification
Deposited By: Kruschinski, Anja
Deposited On:20 Nov 2017 14:05
Last Modified:08 Nov 2019 03:00

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